New in Box YVES SAINT LAURENT BEAUTE Night Reboot Serum, 1.6 oz. moisturizes to reveal a smooth, radiant complexion by the next morning. This bi-phase formula combines gently exfoliating glycolic acid with moisturizing oils and protecting moonlight cactus flower to remove dead skin cells while locking in moisture. It reduces signs of fatigue and clarifies dull skin for a healthy complexion that looks energized overnight. You can also refill the serum in a single step with environmentally-conscious refillable packaging. How to Use: Apply to clean, dry skin at night before your moisturizer. Gently shake the serum to mix the two phases and activate the formula. Dispense two drops into your palms and spread evenly between both hands, then gently massage onto your face and neck beginning at the center and moving outward. 1.6 oz. / 50 mL